DUBLIN--(BUSINESS WIRE)--Research and Markets has announced the addition of the "Digital Signature Market - Forecast(2016-2021)" report to their offering. Digital Signature is the digital correspondent of a handwritten signature or a stamped seal, but offering far more inherent security which is intended to solve the problems of tampering and impersonation in Digital Communications. Digital Signature rely on the process called encryption to ensure authentication. Encryption is the process of se